Module:Présentation

--[[

]]

local presentation = {}

function presentation.total( frame )

   return table.getn( presentation._expandSequence( mw.title.getCurrentTitle() ) )

end

function presentation.current( frame )

   for i,v in pairs( presentation._expandSequence( mw.title.getCurrentTitle() ) ) do
       if v == mw.title.getCurrentTitle().fullText then
           return i
       end
   end

end

function presentation.next( frame )

   local sequence = presentation._expandSequence( mw.title.getCurrentTitle() )
   for i,v in pairs( sequence ) do
       if v == mw.title.getCurrentTitle().fullText then
           return sequence[i+1]
       end
   end

end

function presentation.previous( frame )

   local sequence = presentation._expandSequence( mw.title.getCurrentTitle() )
   for i,v in pairs( sequence ) do
       if v == mw.title.getCurrentTitle().fullText then
           return sequence[i-1]
       end
   end

end

function presentation._expandSequence( title )

   local list = {};
   local title = title.rootPageTitle;
   while true do
       if title.basePageTitle.subPageTitle( tonumber(title.subpageText)+1 ).exists then
           title = title.basePageTitle.subPageTitle( tonumber(title.subpageText)+1 )
           list[table.getn(list)] = title.fullText
       elseif title.basePageTitle.basePagTitle.subPageTitle( tonumber(title.subpageText)+1 ).exists then
           title = title.basePageTitle.basePageTitle.subPageTitle( tonumber(title.subpageText)+1 )
           list[table.getn(list)] = title.fullText
       elseif title.basePageTitle.basePagTitle.subPageTitle( tonumber(title.subpageText)+1 .. '/0' ).exists then
           title = title.basePageTitle.basePageTitle.subPageTitle( tonumber(title.subpageText)+1 .. '/0' )
           list[table.getn(list)] = title.fullText
       elseif title.basePageTitle.basePagTitle.subPageTitle( tonumber(title.subpageText)+1 .. '/1' ).exists then
           title = title.basePageTitle.basePageTitle.subPageTitle( tonumber(title.subpageText)+1 .. '/1' )
           list[table.getn(list)] = title.fullText
       else
           break
       end
   end
   return list

end

return presentation